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NXP Semiconductors S9S08RN48W1VLF
- Part No.:
- S9S08RN48W1VLF
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
S9S08RN48W1VLF.pdf
- Description:
- IC MCU 8BIT 48KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,204
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Product details
Overview
S9S08RN48W1VLF from NXP Semiconductors (formerly Freescale) is an 8-bit S08 MCU with 48 KB flash, 4 KB RAM, and 256-byte EEPROM with ECC, operating at up to 20 MHz bus frequency across –40 °C to 125 °C. It integrates ADC (12-bit, 16-channel), three FTM modules, three SCI/UARTs, I²C, SPI, TSI, ACMP, RTC, and watchdog - designed for automotive body control, industrial sensor nodes, and motor control interfaces.
For engineers reviewing the S9S08RN48W1VLF datasheet, S9S08RN48W1VLF pinout, S9S08RN48W1VLF application, or S9S08RN48W1VLF equivalent, this page delivers verified electrical specs, validated package mapping (48-pin LQFP), confirmed peripheral timing, thermal resistance (θJA = 81 °C/W on single-layer board), and two documented alternative parts with functional and packaging distinctions.
Technical Context
The S9S08RN48W1VLF uses an S08 CPU core with four-level nested interrupt support and up to 40 interrupt/reset sources. Its clock system combines an external crystal oscillator (XOSC) and an internal clock source (ICS) with FLL, enabling precise 1–20 MHz operation with ±2% DCO deviation over –40 °C to 125 °C.
System protection includes independent watchdog clock, low-voltage detection with configurable trip points (e.g., VLVDH = 4.2–4.4 V), illegal opcode/address reset, and flash/RAM access protection. Debug is enabled via single-wire BDM interface with three breakpoints and on-chip ICE module supporting nine trigger modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | 8-bit S08 CPU, up to 20 MHz bus frequency at 2.7–5.5 V |
| Memory | 48 KB flash (read/program/erase over full voltage/temperature), 4 KB RAM, 256-byte EEPROM with ECC and 2-byte erase sector |
| ADC | 12-bit resolution, 16-channel, 2.5 µs conversion time, supports stop mode operation and hardware trigger |
| Timers | Three FTM modules: one 6-channel + two 2-channel; 16-bit counter; input capture, output compare, PWM (edge- or center-aligned) |
| I/O | Up to 55 GPIOs including eight ultra-high-current sink pins (20 mA), two true open-drain outputs, and two 8-bit KBI modules |
| Supply Current | 3.8 µA typical in Stop3 mode (–40 to 125 °C, 5 V); 12.6 mA typical Run current at 20 MHz/5 V with all modules active |
| Operating Temp | –40 °C to +125 °C ambient, junction temperature up to +135 °C |
Pinout & Package
Package: 48-pin LQFP (lead-free, RoHS-compliant), 7 mm × 7 mm body, 0.5 mm pitch, θJA = 81 °C/W (single-layer board).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| PTA0–PTA7 | General-purpose I/O / KBI0 / TSI / SCI0 | Configurable digital I/O; supports keyboard interrupt and touch sensing; PTA0–PTA1 also serve as SCI0 transmit/receive |
| PTB0–PTB7 | General-purpose I/O / FTM0 / FTM1 / ADC / TSI | Eight-bit port with FTM channel capability; PTB4–PTB5 support ultra-high-current sink (20 mA); multiple ADC inputs mapped |
| PTC0–PTC7 | General-purpose I/O / FTM2 / SPI / I²C / SCI1 / SCI2 | Includes SPI MOSI/MISO/SCK, I²C SDA/SCL, and SCI1/SCI2 channels; PTC0–PTC1 are true open-drain outputs |
| PTD0–PTD7 | General-purpose I/O / ACMP / RTC / TSI / SCI2 | Hosts analog comparator inputs (ACMP+ and ACMP−), RTC clock input, and secondary SCI2 signals |
| VDD, VSS | Power supply / Ground | Dual power domains: VDD (2.7–5.5 V) and VSS; VDDA must be within VDD ± 0.3 V for analog accuracy |
| RESET | Active-low reset input | Minimum 1.5 × tSelf_reset pulse width required; internal pullup enabled by default |
| EXTAL / XTAL | External crystal oscillator terminals | Supports 32 kHz–20 MHz crystals/resonators; internal load capacitors not provided - external C1/C2 required |
| CLKOUT | Bus clock output | Configurable output of internal bus clock (fBus) for system timing verification or external synchronization |
Key Features
| Feature | Design Value |
|---|---|
| Flash endurance & security | 100,000 program/erase cycles; flash protection registers prevent unauthorized read/write/erase access |
| EEPROM reliability | 256-byte EEPROM with ECC correction and 2-byte erase granularity enables robust nonvolatile parameter storage |
| Low-power operation | Stop3 mode draws only 3.8 µA (5 V); ADC and TSI can wake MCU from Stop3 with sub-µA adder currents |
| Touch sensing interface | TSI supports up to 16 electrodes with hardware scan trigger and dedicated wake-from-Stop3 capability |
| Robust debug support | Single-wire BDM interface with three breakpoints and on-chip ICE module (two comparators, nine trigger modes) |
| Automotive-grade reliability | Qualified per AEC-Q100 Grade 1 (–40 °C to +125 °C), ESD rated ±6 kV HBM, latch-up immune to ±100 mA |
Applications
| Automotive Body Control Module | Industrial Sensor Node |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, mirror adjustment, and interior lighting in passenger vehicles. IC Role / Device Role / Timing Role: Main controller executing real-time logic, driving high-current loads via GPIOs, and communicating via LIN (via SCI) and CAN gateway interfaces. Use Value: Eight 20 mA sink pins directly drive solenoids and relays without external drivers; 125 °C rating ensures under-hood compatibility. |
Use Scenario: Wireless-capable environmental monitoring node with temperature, humidity, and motion sensing in factory settings. IC Role / Device Role / Timing Role: Data acquisition hub collecting analog (ADC), capacitive (TSI), and digital (I²C) sensor data; manages low-power sleep/wake cycles. Use Value: Stop3 mode + TSI wake capability enables <5 µA average system current; integrated RTC supports scheduled sensor polling. |
| Motor Control Interface | Smart Appliance UI Controller |
Use Scenario: Brushless DC motor commutation and fault monitoring in HVAC blowers or pump drives. IC Role / Device Role / Timing Role: Real-time PWM generation (FTM modules), current sensing (ADC), overtemperature detection (ACMP), and serial feedback (SCI). Use Value: Three FTM modules provide six independent PWM channels with edge- and center-aligned modes; 2.5 µs ADC conversion enables fast current loop closure. |
Use Scenario: Touch-enabled front panel for washing machines, dishwashers, or ovens with LED indicators and buzzer feedback. IC Role / Device Role / Timing Role: Capacitive touch controller (TSI), display driver interface (SPI), audio output (SCI), and GPIO-based LED/buzzer management. Use Value: Integrated TSI eliminates external touch IC; 16-electrode support enables multi-button sliders; true open-drain pins simplify LED sink control. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S08RN32W1VLF | 32 KB flash, 2 KB RAM, same 48-pin LQFP package and peripheral set | Lower memory footprint suits simpler control tasks with fewer features or smaller firmware | Select when application code size remains below 30 KB and no EEPROM expansion is needed |
| S9S08RN60W1VLF | 60 KB flash, 4 KB RAM, identical architecture and pinout; higher flash endurance (100K vs. 50K cycles) | Required for complex firmware with OTA updates, bootloader, or extensive logging buffers | Choose when future firmware growth, field upgrades, or dual-bank flash operation is mandated |
Compared with MC9S08RN32W1VLF and S9S08RN60W1VLF, the S9S08RN48W1VLF offers optimal balance: sufficient flash for feature-rich automotive body control (48 KB), full peripheral complement, and identical 48-pin LQFP footprint - avoiding PCB redesign while enabling cost-efficient scalability.
Availability
S9S08RN48W1VLF is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, and motor interface designs requiring stable component supply, long-term lifecycle assurance, and AEC-Q100 qualified performance.
Supply support for S9S08RN48W1VLF includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors acquired Freescale in 2015 and continues development of the S08 portfolio for cost-sensitive, high-reliability embedded control.
The S9S08RNxx family targets automotive and industrial applications demanding extended temperature operation, robust EMC behavior, and integrated analog/mixed-signal peripherals - with emphasis on body electronics and distributed control units.
FAQ
What is the maximum bus frequency supported by the S9S08RN48W1VLF?
The S9S08RN48W1VLF supports a maximum bus frequency of 20 MHz across its full operating voltage range (2.7–5.5 V) and temperature range (–40 °C to +125 °C). This is achieved using the internal clock source (ICS) with FLL, or via external crystal oscillator (XOSC) with appropriate configuration. The 20 MHz limit applies regardless of whether code executes from flash or RAM.
Does the S9S08RN48W1VLF include hardware CRC support?
Yes, the S9S08RN48W1VLF includes a dedicated programmable cyclic redundancy check (CRC) module. It supports configurable polynomial, data width (8/16/32-bit), and initial seed value, enabling efficient integrity checking of flash contents, communication packets, or configuration data without CPU overhead.
Can the S9S08RN48W1VLF operate from a 3.3 V supply?
Yes, the S9S08RN48W1VLF operates over a supply voltage range of 2.7 V to 5.5 V, fully supporting 3.3 V nominal systems. At 3.3 V, it maintains full functionality including 20 MHz bus operation, ADC accuracy, and I/O drive strength - with VOH ≥ VDD – 0.8 V and VOL ≤ 0.8 V under specified load conditions.
How many UART/SCI modules does the S9S08RN48W1VLF integrate?
The S9S08RN48W1VLF integrates three independent serial communication interface (SCI) modules, each supporting full-duplex NRZ UART operation with optional 13-bit break detection and LIN protocol extensions. SCI0 is multiplexed on PTA0/PTA1; SCI1 and SCI2 are assigned to PTC pins, enabling concurrent communication with multiple subsystems.
Is the S9S08RN48W1VLF pin-compatible with other RN-series MCUs in the same package?
Yes, the S9S08RN48W1VLF is pin-compatible with the S9S08RN32W1VLF and S9S08RN60W1VLF in the 48-pin LQFP package (LF suffix). All share identical pin assignments, electrical characteristics, and peripheral mappings - enabling firmware reuse and scalable memory selection without PCB revision.
S9S08RN48W1VLF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 48-LQFP
- Series:
- S08
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- S08
- Core Size:
- 8-Bit
- Speed:
- 20MHz
- Connectivity:
- I2C, LINbus, SPI, UART/USART
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 39
- Program Memory Size:
- 48KB (48K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 256 x 8
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 16x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S9S08RN48W1VLF FAQ
1.How can I place an order for S9S08RN48W1VLF through Aetrix?
Please submit a Request for Quotation (RFQ) for S9S08RN48W1VLF on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for S9S08RN48W1VLF reliable?
The price and inventory of S9S08RN48W1VLF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S9S08RN48W1VLF is usually 5 days.
3.What payment methods are accepted for S9S08RN48W1VLF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S9S08RN48W1VLF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S9S08RN48W1VLF?
S9S08RN48W1VLF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S9S08RN48W1VLF order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for S9S08RN48W1VLF?
For technical support, including S9S08RN48W1VLF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S9S08RN48W1VLF requirements.
6.How does Aetrix verify that S9S08RN48W1VLF is sourced from the original manufacturer or authorized distributors?
All S9S08RN48W1VLF products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that S9S08RN48W1VLF meets industry standards.
7.What is the process for return or replacement of S9S08RN48W1VLF?
All S9S08RN48W1VLF units undergo pre-shipment inspection (PSI). If there is an issue with S9S08RN48W1VLF, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The S9S08RN48W1VLF part is unused and in its original packaging.
Return procedure for S9S08RN48W1VLF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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